A company is planning to use Azure Cloud for hosting resources. Which of the following is a key advantage of hosting resources in the Azure public cloud?

Answer options:

A.All users across the world can access the resources in your Azure account.
B.High reliability - a vast network of servers ensures against failure
C.Only privileged users can have access to resources in your Azure account.
D.You pay a capital upfront cost when using resources in the public cloud.

Correct Answer: B 
Advantages of public clouds:Lower costs—no need to purchase hardware or software and you pay only for the service you use.
No maintenance—your service provider provides the maintenance.
Near-unlimited scalability—on-demand resources are available to meet your business needs.
High reliability—a vast network of servers ensures against failure.

https://azure.microsoft.com/en-in/overview/what-are-private-public-hybrid-clouds/